Lost Subs, Disaster at Sea investigates the accidental disappearance of submarines. Many things can go wrong on a ship submerged underwater, like undersea pressure, fire, and flood. Through in-depth interviews with actual submariners and surviving family members, this program discusses four major submarines from the U.S. and former Soviet Union that have unfortunately been lost. Learn the details of how the K-19, Kurst, U.S.S.